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      1 #------------------------------------------------------------------------------
      2 #
      3 # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
      4 #
      5 # This program and the accompanying materials
      6 # are licensed and made available under the terms and conditions of the BSD License
      7 # which accompanies this distribution.  The full text of the license may be found at
      8 # http://opensource.org/licenses/bsd-license.php
      9 #
     10 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     12 #
     13 #------------------------------------------------------------------------------
     14 
     15 #include <AsmMacroIoLib.h>
     16 
     17 ASM_FUNC(__ashrdi3)
     18   cmp  r2, #31
     19   bls  L2
     20   cmp  r2, #63
     21   subls  r2, r2, #32
     22   mov  ip, r1, asr #31
     23   movls  r2, r1, asr r2
     24   movhi  r2, ip
     25   mov  r0, r2
     26   mov  r1, ip
     27   bx  lr
     28 L2:
     29   cmp  r2, #0
     30   rsbne  r3, r2, #32
     31   movne  r3, r1, asl r3
     32   movne  r1, r1, asr r2
     33   orrne  r0, r3, r0, lsr r2
     34   bx  lr
     35